Switching from tamoxifen to exemestane could reduce breast cancer recurrence
June 1st 2004Disease-free survival in postmenopausal women with primary breast cancer significantly improved when tamoxifen monotherapy treatment was switched to exemestane therapy after 2-3 years, according to a study published in the New England Journal of Medicine. The existing treatment paradigm calls for tamoxifen, an estrogen-receptor modulator, to be taken alone for all 5 years, but some patients have experienced relapse.
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The appropriateness of hospital antimicrobial use between medical and surgical specialties
June 1st 2004Two published studies from the 1970s describe a higher inappropriate use of antimicrobials among surgeons compared to internal medicine physicians. If this assertation is indeed true, institutions with limited resources should focus interventions on surgical services to improve antimicrobial use. The appropriateness of antimicrobial use in internal medicine and general surgical patients over a 10-month period was evaluated at the University of Louisville Hospital (Louisville, Ky) based upon established institutional antimicrobial guidelines. Antimicrobial selection and dose were evaluated for 1,300 antimicrobial courses. Compliance to institutional guidelines for antimicrobial selection and dose were found in 448 (93%) of 480 courses prescribed by internal medicine services and 728 (88%) of 820 courses prescribed by surgical services (P=.009). Although we were able to identify a 5% difference among specialties, we did not consider this to be a clinically significant difference. We concluded that focused interventions to improve antimicrobial use at the University of Louisville should be applied equally to medical and surgical specialties.
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Darifenacin: An M3-selective muscarinic antagonist for the treatment of overactive bladder
June 1st 2004Darifenacin (Enablex, Novartis) is a muscarinic antagonist in phase 3 clinical trials for the treatment of overactive bladder (OAB). Darifenacin demonstrates relative selectivity for the M3 muscarinic receptor subtype over the M1 and M2 subtypes. In clinical trials, darifenacin has been compared to placebo for the treatment of symptoms of OAB in adult men and women. Patients treated with darifenacin experienced significantly greater reductions in the number of incontinence episodes per week, nocturnal awakenings, and warning time before micturitions. It appears to have similar efficacy to available anticholinergic agents for the treatment of OAB. Commonly reported adverse events include dry mouth and constipation, and preliminary data suggest that darifenacin may be associated with decreased impairment of salivary flow versus oxybutynin. Darifenacin has not been found to have an effect on the cardiovascular system or cognition in clinical trials. Further research is needed to determine the efficacy of darifenacin compared to other available anticholinergic agents such as oxybutynin and tolterodine, as well as emerging therapies. In addition, further investigation of the adverse effect profile in elderly patients is warranted.
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Comprehensive Care Management: Your SWOT Team for High Cost Cases
June 1st 2004To his co-workers, Mark is an outgoing, healthy, 34-year-old young manwith a friendly personality (although they've noticed he does miss workoften). What they don't know is that Mark suffers from Type A hemophilia,chronic pain, addiction to painkillers and recently was diagnosed with HIV,most likely contracted from factor 8 transfusion he received as a teenager.
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New class may help smokers quit, curb post-cessation weight gain
May 4th 2004In phase 3 trials, the first agent in a novel class known as the selective cannabinoid type 1 receptor blockers doubled the odds of quitting smoking while reducing post-cessation weight gain compared with placebo. The agent, rimonabant, also improved several features of the metabolic syndrome in patients with abdominal obesity, reported researchers at the 53rd Annual Scientific Session of the American College of Cardiology (ACC).
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Medicare coverage boosts interest in drug value, prices
May 1st 2004Mark McClellan, MD, PhD, now administrator of the Centers for Medicare and Medicaid Services (CMS), is seeking more evidence-based information about how medical treatments affect patients in the real world. Dr McClellan says his first priority is to use the new Medicare pharmacy program, starting with the drug discount card, to lower drug costs. One prime strategy for doing so is to evaluate which therapies are most efficacious as well as cost-effective for specific patient subgroups in order to curb unnecessary spending on prescription drugs.
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Erectile dysfunction: A review and update
May 1st 2004Erectile dysfunction (ED) is now recognized as a common problem in men. Several medical problems, including diabetes mellitus, coronary artery disease, hypertension, and hyperlipidemia are known to increase the likelihood of developing ED. Diagnosis depends on an adequate history and physical examination. Several therapies are now available for the treatment of ED. With the advent of the phosphodiesterase type 5 (PDE5) inhibitors, therapy for ED has become more acceptable for many men. Oral therapy is usually the first-line treatment due to the ease of use and the effectiveness of this therapy. For men who do not respond to or have a contraindication to PDE5 therapy, intrapenile injection therapy, intraurethral therapy, and vacuum devices are effective alternatives.
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Rasagiline: An oral irreversible MAO-B inhibitor for the treatment of Parkinson’s disease
May 1st 2004Rasagiline (Teva/Eisai), a second-generation irreversible MAO inhibitor highly selective for type B of the enzyme, is expected to gain FDA approval in late 2004/early 2005 for the treatment of Parkinson’s disease in monotherapy or as adjunct therapy to levodopa. Rasagiline is more potent than selegiline, the only FDA-approved drug within the same class, and may be devoid of the undesirable effects (blood pressure increases, euphoria, and sleep disturbances) often reported with selegiline. Rasagiline has been studied and proven effective versus placebo in patients with moderate and advanced Parkinson’s disease in both phase 2 and 3 clinical trials. The drug is administered orally once daily and does not require titration. Furthermore, rasagiline has demonstrated neuroprotective activity in various in vitro models and may show promise in the treatment of other neurologic diseases; however, these properties have yet to be studied in humans.
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